JPH05242214A - Input system for graphic processing system - Google Patents

Abstract

PURPOSE:To efficiently confirm the input position at the time of input. CONSTITUTION:The graphic is handled which is expanded to an image on a frame buffer 23 by a graphic drawing means 21 and is displayed on the screen of a graphic display device 30 at present. If indication of the input position is difficult on the screen where the graphic is displayed at present when data is inputted from an input device 40 through an input means 22, the area around an input cursor is enlarged and displayed in a partial area on the screen by an area enlarging means 24; and thus, the position is easily inputted because an operator can easily confirm the input position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic processing system, and more particularly to an input method in a graphic processing system.

[0002]

2. Description of the Related Art In a conventional graphic processing system, it is assumed that an input request is sent. If it is difficult to confirm the position when inputting on the screen currently displayed on the graphic display device, resize the screen around the specified position again by the user program. To send a position input request again. Therefore, the position cannot be efficiently confirmed at the time of input, and the burden on the user program is heavy.

[0003]

The problem to be solved is that the position cannot be efficiently confirmed when inputting,
Moreover, the burden on the user program is heavy.

[0004]

According to the present invention, when a drawing request is made by a user program, graphic data is expanded into an image on a frame buffer and written in the frame buffer, and an input device is set by the user program. When there is an input request for inputting coordinate values by the operator, if the button pressed on the input device is the area enlargement display button, the area enlargement display is performed. It is a point that returns a value calculated from the coordinate values as a response.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a first embodiment of an input method of a graphic processing system according to the present invention. In FIG. 1, 10 is a user program, 20 is a graphic processing system, 21 is a graphic drawing means, 22 is an input means, 23 is a frame buffer, 24 is an area expansion display means, 30 is a graphic display device, and 40 is an input device. is there. FIG. 2 is a flow chart showing a processing example of the graphic drawing means 21 shown in FIG. When there is a graphic drawing request from the user program, the graphic drawing means 21 is called. In the graphic drawing means 21,
The graphic data is developed into an image on the frame buffer 23 and written in the frame buffer 23 (see processing step 50).

FIG. 3 is a flow chart showing a processing example of the input means 22 shown in FIG. Input device 4 from user program
When the operator uses 0 to input a coordinate value, or when the area enlargement display unit 24 returns control, the input unit 22 is called.
In the input means 22, the call is waited until the button of the input device 40 is pressed (processing step 5).
2). Subsequently, in the input device 40, it is determined 53 whether the area enlargement display button has been pressed. If it is the area enlargement display button, the area enlargement display means 24 is called,
Otherwise, the value calculated from the coordinate value input from the input device 40 is returned as a response (processing step 54).
reference).

FIG. 4 shows the area enlargement display means 24 shown in FIG.
6 is a flowchart showing an example of processing of FIG. In the input means 22,
When the area enlargement display button is pressed, the area enlargement display means 24 is called. In the area enlargement display means 24,
From the device coordinates when the button is pressed in processing step 52, the area to be enlarged (device coordinates) is obtained (see processing step 58), and the area obtained in processing step 58 is enlarged and displayed (device coordinates). ) Is obtained (see processing step 59). In the frame buffer 23, 1 in the enlargement target area obtained in processing step 55
The pixel value is enlarged and displayed at some pixel values in the enlarged display area obtained in processing step 59 (see processing step 60).

FIG. 5 is an explanatory view showing an example of a graphic drawn on the graphic display device 30 by graphic data of horizontal lines, diagonal lines and arcs (see processing step 61). FIG. 6 is an explanatory diagram showing an example of the image of the frame buffer 23 for the graphic in the processing step 61, the enlargement target area determined when the area enlargement display button is pressed, and the enlargement display area (processing step). 62). FIG. 7 is an explanatory diagram showing an actual example of the enlarged display means 24 shown in FIG. 1 (see processing step 63). In this example, the enlargement target area is enlarged and displayed in the enlargement display area by the processing step 62, and the value of 1 pixel of the enlargement target area becomes the value of 9 pixels of the enlargement display area. This allows the operator to easily indicate the position of a pixel in the middle of the intersection of the horizontal line and the diagonal line and the intersection of the diagonal line and the arc (see processing step 64). ..

FIG. 8 is a block diagram showing a second embodiment of the input method of the graphic processing system according to the present invention. Figure 8
In the figure, 10 is a user program, 20 is a graphic processing system, 212 is a graphic drawing means, 22 is an input means, and 23.
Is a frame buffer, 242 is an area enlargement display means, 25
Is a graphic data registration means, 26 is a graphic data storage area, 30
Is a graphic display device, and 40 is an input device.

FIG. 9 shows the graphic data registration means 2 shown in FIG.
6 is a flowchart showing a processing example of No. 5. When there is a graphic drawing request from the user program, the graphic data registration means 25 is called. In the graphic data registration means 25, the graphic data sent from the user program 10 is registered in the graphic data storage area 26, and then the graphic drawing means 21.
2 is called (see process step 65). Figure 10
9 is a flowchart showing a processing example of the graphic drawing means 212 shown in FIG. 8. The graphic drawing means 212 is the graphic data registration means 2
5 is called and the same processing as processing step 50 is performed.

The processing of the input means 22 shown in FIG. 8 has the same operation as the input means shown in FIG. 11
9 is a flowchart showing a processing example of the area enlargement display unit 242 shown in FIG. 8. When the area enlargement display button is pressed in the input means 22, the area enlargement display means 242 is called. In the area enlargement display means 242, the area to be enlarged (apparatus coordinates) is obtained from the apparatus coordinates when the button is pressed in the processing step 52 (see processing step 66). In the area obtained in the processing step 66, the area in the coordinate system of the figure data stored in the figure data storage area 26 is obtained (see the processing step 67). Further, the enlarged display area (device coordinates) of the area obtained in processing step 66 is obtained (processing step 68).
reference).

Since the area obtained in processing step 67 is mapped to the device coordinates obtained in processing step 68, the conversion magnification is obtained (see processing step 69). Using the graphic data registered in the graphic data storage area 26, the graphic data to be drawn in the area obtained in the processing step 67 is examined and the drawing image is calculated (processing step 7).
0). The drawing image obtained in the processing step 70 is subjected to the conversion obtained in the processing step 69 and displayed in the area obtained in the processing step 68 (processing step 71), and the control is returned to the input means 22.

FIG. 12 shows the processing step 66 in FIG.
Of the image of the graphic display device 30 for the graphic, the area to be enlarged at the device coordinates determined when the area enlargement display button is pressed, and the graphic data stored in the graphic data storage means 26 corresponding to this area. It is explanatory drawing which shows the actual example of the expansion display area in a coordinate system, and the expansion display area in a device coordinate (refer process step 72). FIG. 13 is an explanatory diagram showing an actual example of the processing of the area enlargement display unit 242 shown in FIG. In this example, the enlargement target area in the coordinate system of the figure data stored in the figure data storage area 26 is mapped to the enlargement display area of the device coordinates. For this reason, although it takes more time than in the case of the area enlargement display means 24, more detailed display is possible (see processing step 73).

FIG. 14 is a block diagram showing the configuration of the third embodiment of the input system of the graphic processing system according to the present invention. In FIG. 3, 10 is a user program, 20 is a graphic processing system, 213 is a graphic drawing means, 22 is an input means, 23 is a frame buffer, 243 is an area enlargement display means, 25 is graphic data registration means, and 26 is graphic data. Storage area, 27 is a graphic data buffer, 30 is a graphic display device,
40 is an input device.

The processing of the graphic data registration means 25 shown in FIG. 14 is the same as the processing of the graphic data registration means 25 shown in FIG. FIG. 15 is a flowchart showing a processing example of the graphic drawing means 213 shown in FIG. The graphic drawing means 213 is called from the graphic data registering means 25, similarly to the graphic drawing means 212. The figure drawing means 213 develops the figure data into an image on the frame buffer 23 and writes it in the frame buffer 23 (processing step 74).
reference). Then, it is checked by which graphic data the image developed on the frame buffer 23 is drawn (see processing step 75). Further, at the coordinates corresponding to the image developed on the frame buffer 23, the coordinates in the graphic data buffer 27 are obtained, and the graphic data name obtained in the processing step 75 is written into the coordinates (processing step 76). reference).

The processing of the input means 22 shown in FIG. 4 is the same as the processing of the input means 22 shown in FIGS.
FIG. 16 is a flowchart showing a processing example of the area expanding means 243 shown in FIG. When the area enlargement display button is pressed in the input means 22, the area enlargement display means 243 is called. In the area enlargement display unit 243, the area (apparatus coordinates) to be enlarged is obtained from the apparatus coordinates when the button is pressed in processing step 52 (see processing step 77), and the area obtained in processing step 77. An area is obtained in the coordinate system of the graphic data stored in the graphic data storage area 26 (see processing step 78). Subsequently, the enlarged display area (device coordinates) of the area obtained in processing step 77 is obtained (see processing step 79).

A conversion factor for mapping the area determined in processing step 78 to the device coordinates determined in processing step 79 is determined (see processing step 80).
Using the graphic data registered in the graphic data storage area 26,
The graphic data to be drawn in the area obtained in the processing step 78 is checked by the graphic data buffer 27, extracted from the graphic data storage area 26, and stored in the graphic data storage area 26 on the coordinates of the graphic data. The drawing image is calculated (see processing step 81), the drawing image on the coordinates obtained in processing step 81 is subjected to the conversion obtained in processing step 80, and processing step 7 is performed.
It is displayed in the area obtained in step 9 (see processing step 82). After that, after the processing similar to the processing steps 75 and 76 is performed, the control returns to the input means 22.

FIG. 17 is an explanatory diagram showing an actual example of the processing of the graphic data buffer 27 shown in FIG. This example is a processing example of the graphic data buffer 27 for the processing step 61. FIG. 14 using the graphic data buffer 27.
With the configuration of FIG. 8, a finely magnified display is possible as in the configuration of FIG. 8 which does not use the graphic data buffer.
It becomes possible to efficiently perform the display processing of the enlarged graphic.

[0019]

As described above, the present invention is currently
If it is difficult to confirm the position of the input coordinate on the screen displayed on the graphic display device, the area around the position you want to input is enlarged and displayed by the instruction from the input device, and the position you want to input is also displayed. By enlarging and displaying the peripheral area not on the entire screen but on a partial area, it is possible to improve the efficiency of checking the input position and reduce the load on the user program.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of an input method of a graphic processing system according to the present invention.

FIG. 2 is a flowchart showing a processing example of a graphic drawing means shown in FIG.

FIG. 3 is a flowchart showing a processing example of the input means shown in FIG.

FIG. 4 is a flowchart showing a processing example of a region enlargement display unit shown in FIG.

FIG. 5 is an explanatory diagram showing an example of a graphic drawn on a graphic display device by graphic data of horizontal lines, oblique lines, and arcs.

FIG. 6 is an explanatory diagram showing an example of an image of a frame buffer for the graphic of processing step 61 shown in FIG. 5, an enlargement target area determined when the area enlargement display button is pressed, and an enlargement display area. ..

FIG. 7 is an explanatory diagram showing an actual example of the enlarged display means shown in FIG.

FIG. 8 is a block diagram showing a second embodiment of the input method of the graphic processing system according to the present invention.

9 is a flowchart showing a processing example of the graphic data registration means shown in FIG.

10 is a flowchart showing a processing example of the graphic drawing means shown in FIG.

11 is a flowchart showing a processing example of the area enlargement display means shown in FIG.

FIG. 12 is an image of a graphic display device for a graphic of processing step 66 in FIG. 8, an enlargement target area in device coordinates determined when the area enlargement display button is pressed, and graphic data storage means corresponding to this area. FIG. 8 is an explanatory diagram showing an example of an enlarged display area in the coordinate system and an enlarged display area in the device coordinates of the graphic data stored in FIG.

FIG. 13 is an explanatory diagram showing an actual example of the area enlargement display means shown in FIG. 8.

FIG. 14 is a block diagram showing the configuration of a third embodiment of the input method of the graphic processing system according to the present invention.

FIG. 15 is a flowchart showing a processing example of the graphic drawing means shown in FIG.

16 is a flowchart showing a processing example of the area expanding means shown in FIG.

17 is an explanatory diagram showing an actual example of processing of the graphic data buffer shown in FIG. 15. FIG.

[Explanation of reference numerals] 10 user program 20 graphic processing system 21, 212, 213 graphic drawing means 22 input means 23 frame buffer 24, 242, 243 area enlargement display means 25 graphic data registration means 26 graphic data storage area 27 graphic data buffer 30 graphic display device 40 input device 50, 52-54, 58-82 processing steps

Claims (4)

[Claims] 1. When it is difficult to confirm the position of input coordinates on the screen currently displayed on the graphic display device, an area around the position to be input is enlarged and displayed by an instruction from the input device. At the same time, by enlarging and displaying the area around the position you want to input in a partial area instead of the entire screen, you can improve the efficiency of checking the input position and reduce the burden on the user program. A graphic drawing means for expanding the graphic data into an image on the frame buffer and writing it in the frame buffer when a graphic program drawing request is issued from a user program; A first area that is an enlargement target based on the coordinate values input from the device, and a second area that enlarges and displays a figure of the first area that is the enlargement target. An area enlargement display means for obtaining an area, displaying the figure of the area to be enlarged in an enlarged manner on the area to be displayed, and returning control to the input means again; and an input device from the user program When there is an input request for inputting coordinate values by the operator or control is returned from the area enlargement display means, the area enlargement display means is called if the button pressed by the input device is the area enlargement display button, An input method of a configured graphics processing system, further comprising input means for returning a value calculated from coordinate values input from an input device as a response. 2. The area enlarging display means obtains a second area enlarging and displaying the first area to be magnified from the coordinate values input from the input device, and sets the second area as an area on the frame buffer. 2. The graphic processing according to claim 1, wherein the value for each pixel in the enlargement target area on the frame buffer is read, assigned to a value of several pixels in the display area, enlarged and displayed, and control is returned to the input means. Input method in the system. 3. When a graphic data drawing request is issued from the user program, the graphic data sent from the user program is registered in a graphic data storage area and then the graphic drawing means is called. The graphic drawing data registering means is provided, the graphic drawing means is configured to be called from the graphic data registering means, and the area enlargement display means is an enlargement target from the coordinate value input from the input device. Is obtained on the world coordinates, and a second area for enlarging and displaying the first area is obtained on the device coordinates, and on the coordinate system of the graphic data stored in the graphic data storage area. An image of the first area to be magnified is calculated, conversion from the first area to be magnified to the second area for magnifying and displaying the first area is performed, and magnified display is performed. Then, the input method in the graphic processing system according to claim 1, wherein the control is returned to the input means. 4. The graphic drawing means draws a graphic and obtains coordinates in a graphic data buffer of coordinates corresponding to an image developed on the frame buffer,
The graphic data name that causes the image developed on the frame buffer to be drawn is written in the coordinate, and the area enlargement display means is the enlargement target from the coordinate value input from the input device. The first area is obtained in world coordinates, and the second area in which the first area is enlarged and displayed is obtained in device coordinates, and the second area to be enlarged is obtained in the coordinate system of the graphic data stored in the graphic data storage area. The graphic data to be drawn in the first area is checked by the graphic data buffer, the image of the first area to be enlarged is calculated, and the first area is enlarged and displayed from the first area to be enlarged. 4. The input method in the graphic processing system according to claim 3, wherein the input area is converted into the second area, enlarged and displayed, and the control is returned to the input means.